org.optaplanner.examples.pas.domain.solver.BedDesignationDifficultyWeightFactory Maven / Gradle / Ivy
/*
* Copyright 2010 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.optaplanner.examples.pas.domain.solver;
import static java.util.Comparator.comparing;
import static java.util.Comparator.comparingInt;
import java.util.Comparator;
import org.optaplanner.core.impl.heuristic.selector.common.decorator.SelectionSorterWeightFactory;
import org.optaplanner.examples.pas.domain.BedDesignation;
import org.optaplanner.examples.pas.domain.PatientAdmissionSchedule;
import org.optaplanner.examples.pas.domain.Room;
public class BedDesignationDifficultyWeightFactory
implements SelectionSorterWeightFactory {
@Override
public BedDesignationDifficultyWeight createSorterWeight(PatientAdmissionSchedule schedule, BedDesignation bedDesignation) {
int hardDisallowedCount = 0;
int softDisallowedCount = 0;
for (Room room : schedule.getRoomList()) {
hardDisallowedCount += (room.countHardDisallowedAdmissionPart(bedDesignation.getAdmissionPart())
* room.getCapacity());
softDisallowedCount += (room.countSoftDisallowedAdmissionPart(bedDesignation.getAdmissionPart())
* room.getCapacity());
}
return new BedDesignationDifficultyWeight(bedDesignation, hardDisallowedCount, softDisallowedCount);
}
public static class BedDesignationDifficultyWeight implements Comparable {
private static final Comparator COMPARATOR = comparingInt(
(BedDesignationDifficultyWeight weight) -> weight.requiredEquipmentCount * weight.nightCount)
.thenComparingInt(weight -> weight.hardDisallowedCount * weight.nightCount)
.thenComparingInt(weight -> weight.nightCount)
.thenComparingInt(weight -> weight.softDisallowedCount * weight.nightCount)
// Descending (earlier nights are more difficult) // TODO probably because less occupancy
.thenComparingInt(weight -> -weight.bedDesignation.getAdmissionPart().getFirstNight().getIndex())
.thenComparing(weight -> weight.bedDesignation, comparing(BedDesignation::getId));
private final BedDesignation bedDesignation;
private int requiredEquipmentCount;
private int nightCount;
private int hardDisallowedCount;
private int softDisallowedCount;
public BedDesignationDifficultyWeight(BedDesignation bedDesignation,
int hardDisallowedCount, int softDisallowedCount) {
this.bedDesignation = bedDesignation;
this.requiredEquipmentCount = bedDesignation.getPatient().getRequiredPatientEquipmentList().size();
this.nightCount = bedDesignation.getAdmissionPart().getNightCount();
this.hardDisallowedCount = hardDisallowedCount;
this.softDisallowedCount = softDisallowedCount;
}
@Override
public int compareTo(BedDesignationDifficultyWeight other) {
return COMPARATOR.compare(this, other);
}
}
}